Sigma S2Ba Instructions d'exploitation télécharger pdf (Page 20)

7 Installation

CAUTION!

Danger of personnel injury and material damage

The disregard of technical data during installation may lead

to personal injuries or damage to property.

– Observe the technical data- refer to chapter "Technical

Data" and, where applicable, the operating instructions

of the accessories.

7.1 Installation, hydraulic

WARNING!

Warning about personal and material damage

EX pumps only: When operating in EX areas, certain sub‐

jects must be observed.

– The chapter "Important supplements for metering pumps

in EX zones" of the "General Operating Instructions on

ProMinent

Motor-Driven Metering Pumps and Hydraulic

Accessories" must be observed in all cases.

WARNING!

Warning of feed chemical reactions to water

Feed chemicals that should not come into contact with water

may react to residual water in the liquid end that may origi‐

nate from works testing.

– Blow the liquid end dry with compressed air through the

suction connector.

– Then flush the liquid end with a suitable medium through

the suction connector.

WARNING!

The following measures are an advantage when working with

highly aggressive or hazardous feed chemicals:

– Install a bleed valve with recirculation in the storage

tank.

– Install an additional shut-off valve on the discharge or

suction ends.

CAUTION!

Suction problems possible

For feed chemicals with a particle size greater than 0.3 mm,

the valves may no longer close properly.

– Install a suitable filter in the suction line.

Installation

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Sigma S2Ba Instructions d'exploitation Page 20